The feeding habits of river crabs, what food do river crabs generally eat

Under natural conditions, it mainly eats aquatic plants and humus, and likes to eat animal carcasses, and also likes to eat snails, mussels, worms, insects, and occasionally preys on small fish and shrimps, and when food is scarce, it will also kill each other, and even devour the eggs it holds, and sometimes it will cause the same kind to compete for food because of a dead fish. Under normal circumstances, river crabs have easy access to plant food, which often constitutes the main component of crab stomach food, and there is some sediment in the crab stomach, which is a sign that river crabs feed on benthic organisms and humus. River crabs generally hide in their burrows during the day and come out of the burrows at night to feed.

On land, river crabs do not feed much, and tend to drag food from the shore to the bottom of the water or to the edge of the cave before feeding. River crabs do not starve to death. Under the conditions of artificial breeding, according to the needs of the growth and development of river crabs, the structure of "fine-coarse-fine" in the feeding bait is conducive to the growth of river crabs.

Crab. The feeding habits are very mixed, and they eat aquatic plants and humus under natural conditions.

Main, also like to eat snails, worms, insects, small fish and shrimp, etc., but in the lack of food in the environment, will be cannibalism, in addition to river crabs like to inhabit the water clear, aquatic plants rich in places, breeding can choose ponds as breeding sites, and regularly check the water quality.

Wild river crabs mainly eat aquatic plants, animal carrion, small fish and shrimp, insects, etc., while artificially farmed river crabs can eat snails and mealworms.

Earthworms, soybean cakes, peanut cakes and other foods, and every time they provide food to river crabs, they need to be placed in a fixed position to prevent food from entering the water and polluting the water quality.

River crabs like to inhabit freshwater lakes and rivers with clear water quality and abundant aquatic plants, and their habitat is divided into seclusion and burrowing, generally in the banks and beaches of rivers or other waters where the tide rises, river crabs like to burrow, and in lakes with good water quality and wide water surface, river crabs like to live in seclusion in aquatic weeds and sediment.

In the process of breeding river crabs, you can choose the pond as a breeding place, and build a dew mound with rich vegetation in the pond to provide a resting and hiding area for the river crabs, in addition, the color of the water body should be checked regularly, and if the water quality becomes green, turbid and smelly, it is necessary to replace the good water quality for the river crabs in time.

1. Phytoplankton: diatoms, golden algae, dinoflagellates, euglena, green algae, etc., which are the feed for early juvenile crabs and zooplankton;

2. Benthic animals: snails, clams, river mussels, and earthworms in the water area are its best feed;

3. Zooplankton: rotifers, cherry, flexopods, etc., are good feed;

4. Aquatic plants: bitter grass, black algae, weed, horseweed, turnip, duckweed, water lotus, water peanut, golden silk grass, etc., are its main natural bait;

5. Xunyou terrestrial animals and plants: mealworms, earthworms, ryegrass, wolf's tail, aggregate grass, etc.

Crab is a common edible aquatic animal, delicious taste, has the effect of relaxing muscles and invigorating qi, regulating stomach and eliminating food, clearing meridians, clearing heat and nourishing yin. Sichuan people love to eat spicy crabs, and after the crabs are processed, they are directly stir-fried with spices. After a while, a pot of spicy crab with golden color and fresh and spicy flavor was done.

It's fragrant and crispy, so delicious that you lick your fingers!

River crab, also called "crab" or "hairy crab", river crab feeding is very miscellaneous, in natural conditions to eat aquatic grass, humus-based, love to eat animal corpses, also like to eat snails, mussels, worms, insects, occasionally prey on small fish, shrimp food scarcity will also kill each other, even devour their own eggs, sometimes because of a dead fish and incur the same kind of food, under normal circumstances, river crabs to obtain plant food is easy, often constitute the main component of crab stomach food, crab stomach has some sediment, This is a sign that river crabs feed on benthic organisms and humus.

Meat crab: is the male crab in the sea crab blue crab, the meat crab is beautiful with meat, the crab meat of the high-quality meat crab is plump, smooth and sweet, there is a feeling of fragrance, the umbilicus of the crab is a triangular meat crab, the river crab is also called "crab" and "hairy crab", it belongs to the freshwater crab, often burrows in the mud bank of the river, river and lake marsh, nocturnal activity, feeds on fish, shrimp, animal carcasses and grains, often migrates to the estuary of the sea every autumn to lay eggs, hatches in March and May of the second year, develops into a juvenile crab, and then traces the meat of the river to be fresh and tender, It is a favorite food of people.

Meat crab blue crab with a triangular ventral umbilicus in the middle is a meat crab. Meat crabs are beautiful with meat, and the crab meat of high-quality meat crabs is plump, smooth and sweet, and has a fragrant feeling.

Blue crabs are produced all year round, but during the period from the third day of the eighth lunar month to the twenty-third day of the eighth lunar month every year, the shells of blue crabs are as strong as shields, and the claws are round and strong"In August, cockles arrive at a chicken"said. The famous poet Su Dongpo also wrote in the poem "Crickles" that "half a shell contains yellow should order wine, and two chelates should be cut to persuade the snow to add food".

Chinese name meat crab.

The foreign name is mud crab

Another name. The main raw material of blue crab.

Crab, condiments and spices.

Key nutrients.

Proteins, fats.

Main edible efficacy.

It has the effect of strengthening the waist and kidney, eliminating accumulation and strengthening the spleen, nourishing the heart and soothing the nerves.

Suitable for. It can be consumed by the general population.

Spleen and stomach deficiency, cold stool, loose stools, abdominal pain, recluse, wind chill and cold that have not healed or chronic wind diseases, including intractable ** itching disease, menorrhagia, menstrual pain, pregnant women should not eat.

River crabs, also called "crabs" and "hairy crabs", have a square shape and a hard texture of the cephalothorax formed by the combination of head and thorax. There is a pair of eyes on the front of the body and two pairs of sharp crab teeth on the sides. The pair of appendages at the very front of the crab are called chelicerae, and the surface is covered with villi; After chelicerae there are 4 pairs of footsteps, flattened and long; The abdominal limb has degenerated.

The male and female of the river crab can be distinguished by its abdomen: the female has a round abdomen, and the male has a triangular abdomen.

The river crab is a large crustacean with a body divided into 21 segments, and the whole body is divided into two parts: cephalothorax and abdomen because the head and thoracic segments heal each other. The back of the adult crab is inky, and the cephalothorax is on average 7 cm long and wide.

River crabs often burrow in the mud banks of rivers, rivers and lakes and marshes, nocturnal activities, feed on fish, shrimp, animal carcasses and grains, often migrate to the estuary of the sea to lay eggs in autumn every year, hatch in March and May of the second year, develop into juvenile crabs, and then trace the meat of the river to be fresh and tender, it is a food that is deeply loved by people.

The scientific name of river crab is Chinese mitten crab, which is a precious freshwater product, delicious and nutritious, and has high economic value.

Scientific name in Chinese. Chinese mitten crab.

Another name. River crabs, crabs, hairy crabs.

kingdom Animalia. Phylum Arthropods.

Yamen. Subphylum Crustacea.

Classes of soft armor. Subclass.

True soft carapace.

Eye-catching. subhead.

Gastric suborder. Family Bow Crab Family.

It belongs to the genus Mitten Crab.

Species of Chinese mitten crab.